This YouTube video discusses the possibility of another American Civil War, and provides a few different models for predicting when and how it will happen. It is worth noting that these models are only theories, and should be taken with a grain of salt. The video discusses the theory that there are periodic crises in civilizations, which are usually caused by declines in wages and population growth. The most recent example was the European World War II. The video also discusses the theory that America is in the same place as Rome was in 100 BC – a time of declining belief in social institutions and a world dominated by a single superpower. If America does not address these issues, it may experience a civil war.